Banknote Processing Device Conveyance Route Segmentation

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Solution Overview

Problem

Conventional banknote processing devices experience increased failure rates due to extended conveying distances, particularly when rejected banknotes are jammed, making it difficult to distinguish them from normal banknotes during maintenance.

Innovation Solution

The banknote processing device configures a conveyance route that allows banknotes to be directly stored in a specific storage container without passing through the differentiating section, reducing the conveying distance and thus minimizing the likelihood of jams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If banknotes are conveyed from the temporary holding section to the banknote storage containers or reject container via the differentiating section, then the banknotes can be properly sorted and differentiated, but the conveying distance increases which leads to higher failure rates and jams

Engineering Contradiction:

Improvefailure rateVSAvoidconveying distance

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The conveyance system is divided into multiple independent routes: a first conveyance route for normal banknotes passing through the differentiating section, and a second conveyance route for rejected banknotes that bypasses the differentiating section. This segmentation allows each route to be optimized independently, reducing the conveying distance for rejected banknotes and lowering the failure rate.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A route switching mechanism acts as an intermediary between the temporary holding section and the final storage destinations. This switcher directs banknotes to appropriate conveyance routes based on their status, enabling rejected banknotes to take a shorter path that avoids the differentiating section while still achieving proper sorting.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of repair

If rejected banknotes are conveyed through the differentiating section, then they can be identified, but it becomes difficult to distinguish them from normal banknotes during maintenance when both types are mixed in the conveyance system

Engineering Contradiction:

Improvemaintenance difficultyVSAvoidbanknote status distinction

Core Design Contradiction:

Ease of repairVSLoss of information

Solution Approach 1:

The system segments the flow of normal and rejected banknotes into separate conveyance routes. Rejected banknotes are directed through a dedicated second route that bypasses the differentiating section, keeping them physically separated from normal banknotes throughout the conveyance process. This separation maintains clear identification of rejected banknotes and simplifies maintenance by preventing mixing.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The routing decision is made in advance based on preliminary differentiation at the temporary holding section. Banknotes are assigned to specific conveyance routes before entering the main conveyance system, ensuring that rejected banknotes are isolated from normal banknotes for the entire duration of their conveyance, making them easily distinguishable during maintenance.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If a single conveyance route is used for all banknotes, then the system structure is simplified, but the conveying distance for rejected banknotes increases leading to more jams and failures

Engineering Contradiction:

Improveconveyance route structureVSAvoidjam occurrence rate

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The conveyance system is segmented into multiple routes with different functions: the first route handles normal banknotes through the differentiating section, while the second route handles rejected banknotes directly to storage. This segmentation adds structural complexity but dramatically reduces the conveying distance for rejected banknotes, lowering the jam occurrence rate and improving overall reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system employs a dynamic route switching mechanism that adapts the conveyance path based on the status of each banknote. This dynamic routing allows the system to optimize the conveyance distance for each banknote type in real-time, reducing jams for rejected banknotes while maintaining proper differentiation for normal banknotes.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8905219B2Banknote processing device

Publication Date: 2014.12.09 OKI ELECTRIC INDUSTRY CO LTD

AI summary

A banknote processing device includes a differentiating section that differentiates banknotes, a temporary holding section that temporarily stores the differentiated banknotes, banknote storage containers that store the banknotes, and a conveyance route that connects the differentiating section, the temporary holding section, and the banknote storage containers. The processing device is constructed so that when the banknotes stored in the temporary holding section are sent out and stored in the banknote storage containers based on differentiation results of the banknotes by the differentiating section, the banknotes are conveyed from the temporary holding section via the differentiating section, and are stored in any one of the banknote storage containers, or the banknotes are conveyed from the temporary holding section, via a route that does not go through the differentiating section, and are stored in a specific one of the banknote storage containers.